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प्रश्न
Select the correct option:
In case of concave mirror, the minimum distance between an object and its real image is:
विकल्प
f
2f
4f
zero
उत्तर
zero
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संबंधित प्रश्न
Fill in the blank
A ________ image cannot be obtained on a screen.
Select the correct alternative
The angle between the incident ray and the ray reflected from the plane mirror is 70°. The angle of incidence will be :
The diagram in fig. shows an incident ray AO and the normal ON on a plane mirror. Draw the reflected ray. State the law you use to draw the direction of the reflected ray.
Explain the following term :
Plane mirror
Draw diagram/diagrams to show them.
An optician while testing the eyes of a patient keeps a chart of letters 3 m behind the patient and asks him to see the letters on the image of chart formed in a plane mirror kept at distance 2 m in front of him. At what distance is the chart seen by the patient?
In the barber's shop, two plane mirrors are placed :
A ray of light strikes a plane mirror, such that the angle with the mirror is 20°. What is the value of angle of reflection? What is the angle between the incident ray and the reflected ray?
Draw a neat two ray diagram for the formation of images in two plane mirrors, when mirrors are at right angles to each other.
A boy stands 4 m away from the plane mirror. If the boy moves `1/2` m towards the mirror, what is now the distance between the boy and his image? Give a reason for your answer.
